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Title: Measurement of branching fraction and direct CP asymmetry in charmless B+ ?K+K-?+ decays at Belle
Authors: Hsu C.-L.
Dossett D.
Sevior M.E.
Adachi I.
Aihara H.
Al Said S.
Asner D.M.
Atmacan H.
Aulchenko V.
Aushev T.
Ayad R.
Badhrees I.
Bakich A.M.
Barberio E.
Behera P.
Berger M.
Bhardwaj V.
Bhuyan B.
Biswal J.
Bloomfield T.
Bondar A.
Bonvicini G.
Bozek A.
Bra?ko M.
Browder T.E.
Chang P.
Chekelian V.
Chen A.
Cheon B.G.
Chilikin K.
Chistov R.
Cho K.
Choi Y.
Cinabro D.
Dash N.
Di Carlo S.
Dole�al Z.
Dr�sal Z.
Eidelman S.
Farhat H.
Fast J.E.
Fulsom B.G.
Gaur V.
Gabyshev N.
Garmash A.
Goldenzweig P.
Golob B.
Grzymkowska O.
Guido E.
Haba J.
Hara T.
Hayasaka K.
Hayashii H.
Hedges M.T.
Hou W.-S.
Inami K.
Inguglia G.
Ishikawa A.
Jacobs W.W.
Jaegle I.
Jeon H.B.
Jin Y.
Joffe D.
Joo K.K.
Julius T.
Kaliyar A.B.
Kang K.H.
Katrenko P.
Kawasaki T.
Kiesling C.
Kim D.Y.
Kim H.J.
Kim J.B.
Kim K.T.
Kim M.J.
Kim S.H.
Kody� P.
Korpar S.
Kotchetkov D.
Kri�an P.
Krokovny P.
Kuhr T.
Kulasiri R.
Kuzmin A.
Kwon Y.-J.
Lai Y.-T.
Lange J.S.
Li C.H.
Li L.
Li Gioi L.
Libby J.
Liventsev D.
Lubej M.
Luo T.
Masuda M.
Matsuda T.
Matvienko D.
Miyabayashi K.
Miyata H.
Mizuk R.
Mohanty G.B.
Mori T.
Mussa R.
Nakano E.
Nakao M.
Nanut T.
Nath K.J.
Natkaniec Z.
Nayak M.
Nisar N.K.
Nishida S.
Ogawa S.
Okuno S.
Ono H.
Onuki Y.
Pakhlova G.
Pal B.
Park C.-S.
Park C.W.
Park H.
Paul S.
Pedlar T.K.
Pes�ntez L.
Piilonen L.E.
Ritter M.
Rostomyan A.
Sakai Y.
Sandilya S.
Sanuki T.
Sato Y.
Savinov V.
Schneider O.
Schnell G.
Schwanda C.
Seino Y.
Senyo K.
Shebalin V.
Shibata T.-A.
Shiu J.-G.
Shwartz B.
Simon F.
Solovieva E.
Stari? M.
Strube J.F.
Sumisawa K.
Takahashi M.
Takizawa M.
Tenchini F.
Uchida M.
Uglov T.
Unno Y.
Uno S.
Urquijo P.
Usov Y.
Van Hulse C.
Varner G.
Varvell K.E.
Vorobyev V.
Waheed E.
Wang C.H.
Wang M.-Z.
Wang X.-L.
Watanabe M.
Watanabe Y.
Widmann E.
Williams K.M.
Won E.
Yamashita Y.
Ye H.
Zhang Z.P.
Zhilich V.
Zhukova V.
Zhulanov V.
Zupanc A.
(Belle Collaboration)
Issue Date: 2017
Citation: 6
Abstract: We report a study of the charmless hadronic decay of the charged B meson to the three-body final state K+K-?+. The results are based on a data sample that contains 772�106 BB; pairs collected at the ?(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. The measured inclusive branching fraction and direct CP asymmetry are (5.38�0.40�0.35)�10-6 and -0.170�0.073�0.017, respectively, where the first uncertainties are statistical and the second are systematic. The K+K- invariant mass distribution of the signal candidates shows an excess in the region below 1.5 GeV/c2, which is consistent with the previous studies from BABAR and LHCb. In addition, strong evidence of a large direct CP asymmetry is found in the low K+K- invariant-mass region. � 2017 American Physical Society.
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